Pet bed



FIG. 1 is a top perspective view of a pet bed showing our new design;

FIG. 2 is a top plan view thereof

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the pet bed that form no part of the claimed design. 

CLAIM The ornamental design for a pet bed, as shown and described. 